/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-rers2012/Problem16_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 10:42:02,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 10:42:02,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 10:42:02,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 10:42:02,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 10:42:02,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 10:42:02,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 10:42:02,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 10:42:02,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 10:42:02,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 10:42:02,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 10:42:02,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 10:42:02,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 10:42:02,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 10:42:02,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 10:42:02,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 10:42:02,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 10:42:02,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 10:42:02,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 10:42:02,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 10:42:02,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 10:42:02,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 10:42:02,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 10:42:02,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 10:42:02,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 10:42:02,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 10:42:02,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 10:42:02,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 10:42:02,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 10:42:02,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 10:42:02,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 10:42:02,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 10:42:02,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 10:42:02,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 10:42:02,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 10:42:02,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 10:42:02,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 10:42:02,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 10:42:02,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 10:42:02,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 10:42:02,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 10:42:02,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 10:42:02,978 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 10:42:02,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 10:42:02,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 10:42:02,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 10:42:02,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 10:42:02,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 10:42:02,979 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 10:42:02,980 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 10:42:02,980 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 10:42:02,980 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 10:42:02,980 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 10:42:02,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 10:42:02,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 10:42:02,981 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 10:42:02,981 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 10:42:02,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 10:42:02,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 10:42:02,981 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 10:42:02,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 10:42:02,981 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 10:42:02,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 10:42:02,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 10:42:02,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 10:42:02,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-03-31 10:42:03,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 10:42:03,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 10:42:03,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 10:42:03,175 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 10:42:03,175 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 10:42:03,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label19.c [2023-03-31 10:42:04,114 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 10:42:04,403 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 10:42:04,404 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label19.c [2023-03-31 10:42:04,415 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2649108b2/a024d5954fd94b4689ca87026f904d25/FLAGc1b88f6fe [2023-03-31 10:42:04,429 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2649108b2/a024d5954fd94b4689ca87026f904d25 [2023-03-31 10:42:04,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 10:42:04,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 10:42:04,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 10:42:04,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 10:42:04,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 10:42:04,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:42:04" (1/1) ... [2023-03-31 10:42:04,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e3615f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:04, skipping insertion in model container [2023-03-31 10:42:04,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:42:04" (1/1) ... [2023-03-31 10:42:04,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 10:42:04,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 10:42:04,641 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label19.c[4623,4636] [2023-03-31 10:42:04,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 10:42:04,860 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 10:42:04,889 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label19.c[4623,4636] [2023-03-31 10:42:05,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 10:42:05,051 INFO L208 MainTranslator]: Completed translation [2023-03-31 10:42:05,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05 WrapperNode [2023-03-31 10:42:05,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 10:42:05,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 10:42:05,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 10:42:05,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 10:42:05,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 10:42:05,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 10:42:05,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 10:42:05,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 10:42:05,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:42:05" (1/1) ... [2023-03-31 10:42:05,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 10:42:05,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 10:42:05,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 10:42:05,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 10:42:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 10:42:05,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 10:42:05,290 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 10:42:05,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 10:42:06,639 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 10:42:07,393 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 10:42:07,393 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 10:42:07,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:42:07 BoogieIcfgContainer [2023-03-31 10:42:07,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 10:42:07,396 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 10:42:07,397 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 10:42:07,397 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 10:42:07,397 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:42:07" (1/1) ... [2023-03-31 10:42:07,398 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=OctagonDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 10:42:07,415 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 10:42:07,415 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 10:42:07,419 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 10:42:07,422 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 10:42:07,422 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 10:42:07,520 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 71 for LOIs [2023-03-31 10:42:07,851 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 37 [2023-03-31 10:42:11,564 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 95498 conjuctions. This might take some time... [2023-03-31 10:42:18,622 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 878 conjuctions. [2023-03-31 10:42:20,851 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 23 [2023-03-31 10:42:21,445 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 52566 conjuctions. This might take some time... [2023-03-31 10:42:25,224 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 1478 conjuctions. [2023-03-31 10:42:47,991 WARN L223 SmtUtils]: Spent 19.00s on a formula simplification that was a NOOP. DAG size: 1216 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)